Mounting for rimless spectacles and eyeglasses.



G. S. PPEIPFBR. MOUNTING FOB BIMLESS sPgcTAcLEs AND EYEGLASSES.

APPLICATION II LBD MAR. 22, 1913.

Patented Sept. 2, 1913.

Wi l/Zn GEORGE S. PFEIFFER, OF CHICAGO. ILLINOIS.

MOUNTING FOR RIMLESS SPECTACLES AND EYEGLASSES.

Specification of Letters Patent.

Application filed March 22, 1913. Serial no. 756,120.

To all whom it may concern Be it known that l, Gnonor, Prnrrrnn,acitizen of the United States, residing at Chicago,'in the county ofCook and State of Illinois, have invented a new and useful Improvementin Mounting for Rimless Spectacles and Eyeglasses, of which the followinis a specification.

31y invention relates to improvement in the,construction of means forsecuring rim less lenses to the bridge-portion ofspectacles oreye-glasses; my object being to provide simple, strong, durable andinexpensive attaching means which will operate to hold the lenses to thebridge or nose-piece with great security and steadiness whilecontributing sufficient resilience between the parts to practicallyobviate all danger of fracturing the lenses in the operation of securingthe parts together, and furthermore to reduce danger of injury to thelenses in the hair dling of the eye-glasses or spectacles in use.Referring to the accompanying drawing-- Figure 1 shows the variousfeatures of the mounting in perspective and detached from each other;Fig. 2 is a sectional view of the assembled mounting taken on line 2 in,Fig. 1; and Figs. 8 and 4, are views similar to Fig. 2 and illustratingmodifications.

The bridge of nose-piece 5 may be of conventional form, either stiff, asis usual in spectacles, or resilient in the case of eye glasses. At eachend of the bridge is the usual arcuale bearing-strip 6, against whichthe lenses 7 fit at their inner ends. The strips 6 are concavo-convex incross section to render them non-resilient and sufficiently stiff to befree from danger of becoming bent out of shape in use. Integral with thestrips 6 are the perforated lens-embracing attaching clips or cars 8, 9.The lenses are provided near their inner ends with perforations 10, toregister with the perforations in the clips 8 and 9 and receive thethreaded fastening pins mriscrews 11. The screws 11 pass looselythrougl-i perforations in the clips 8 and engage the threadtglperforations in the clips 9.

The reference numeral 12 designates a' spring'-piece having acollar-portion and a resilientarm 14. The collar-portion 14 rests upon.the clip 8 around the perforation in the latter and the spring-arm 14extends partway through the perforation 10 in the lens. In thetightening of the screw 11, the

arm 14 bears against the wall of the perforation 10 and presses the lensinto the socket formed by the arcuate strip 6. The pressure of thespring-arms 14 servesto hold the lenses 7 in contact with the arcuatestri s G with sufficient firmness to prevent vibration of the lenses inrse, and the pressure exerted by the springnrnn s suiliciently yieldingto overcome danger of fracturing the lenses in the adjustment of theparts and in the necessary handling of the spectacles or eye-glassesinuse.

In the construction shown inFigs. 1 and 2, the spring arni l4 isstraight, or nearly so, and bears at its free end against the lens. Inthe construction shown in Fig. 3, the spring-arm 14- is bowed to hear atits free end against the screw 11 and bear between its ends yieldinglyagainst the lens. In either case the tightening of the screw 11 causesthe spring-arm 14 to press the lens against the unvi'elding arcuatestrip 6. In the construction shown in Fig. 4, the clip 8 is hinged tothe strip 6 and the spring-arm 14 is carried by the clip 8. Thetightening of the screw 11 swings the clip 8 against the lens and causesthe spring-arm 14 to press the lens yieldingly into the socket of thearcuate strip 6. While the connection between the lenses and the bridgeshould be such to avoid vibration or shaking of the lenses, a rigidconnection between the bridge and lenses is undesirable, owing to thebrittle nature of the latter. A limited amount of resilience between thelenses and the bridge is advantageous and it is desirable that thisresilience shall be at the perforation of the lens rather than at thearcuate strip 6. The latter should be sufficiently stiff and strong toavoid danger of its becoming distorted in use.

The foregoing description is intended to l convey a clear understandingof my improvements'in what I now believe to be the best form of theirembodiment, and no undue limitation should be understood therefrom. Itis my intention to claim all that is novel in my invention, and that theclaims shall be construed as broadly as the priorstate of the art mayWarrant.

What I claim as new and desire to secure by Letters Patent isg 1. In alens-mount, the combination of a bridge, or nose-piece, provided with abearing strip for the inner end of the lens, and

lens-embracing clips, an attaching'pin on the clips extending throughaperforation Patented Sept. 2, 1913,

in the lens, and a spring between said pin and strip bearing yieldinglyagainst the lens, for the purpose set forth. l

2. In a lens-mount, the combination of a bridge, or nose-piece, providedwith a. stiff areuate bearing-strip for the inner end of the lens, andlens-embracing elips, s n attach-- ,ing pin on the clips extendingthrough a perforation. in the lens, and a s ring between said pin andstrip bearing yiel inglysgmnst v the lens, for the purpose set forth.-

3. In a lens-mount,- the combination of 5 lens yiel ingly bridgeoornose-piece, provided with a bear ing-strip for the inner end of thelens, and

perforated lens-embracing clips, a screw eni aging theelips and passingthrough avpere oration in the lens, and a spring extending into theerforation of the lens and actuated by the t1 htening of the screw topress the 05 m 01' this patent may be obtained for Washington, D. G.

five cents eac1i, -by addressing the Commissioner of Patents

